Modeling of wave propagation in a blocky medium with thin viscoelastic interlayers in a spatial setting

E. A. Efimov

Sibirskij žurnal industrialʹnoj matematiki, Tome 27 (2024) no. 4, pp. 20-33

Résumé

A three-dimensional model of a blocky medium with elastic blocks and thin elastic and viscoelastic interlayers is considered. The interlayers are described by simplified differential-difference relations. A numerical algorithm for solving dynamical problems based on splitting method is presented. The results of simulation of wave propagation in blocky half-space are presented. We compare the behaviour of surface waves arising in a blocky layered medium and in a discrete periodic medium consisting of rigid masses connected to each other by elastic springs. Results of computations using the proposed model are in good agreement with the experimental data.

Détail

Keywords: blocky-layered medium, elastic block, thin interlayer.

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